tests/examples/gl/gtk/fxtest/pixbufdrop.c - mtk-gst-plugins-bad-debian - Git at Google

 /*
  * GStreamer
  * Copyright (C) 2008-2009 Filippo Argiolas <filippo.argiolas@gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public
  * License along with this library; if not, write to the
  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif

 #define GLIB_DISABLE_DEPRECATION_WARNINGS

 #include <gst/gst.h>
 #include <gtk/gtk.h>
 #include <gdk/gdk.h>
 #include <gdk-pixbuf/gdk-pixbuf.h>

 #include "../gstgtk.h"

 #include <gst/video/videooverlay.h>

 static gint delay = 0;
 static gint saveddelay = 0;
 static gint method = 1;

 struct _SourceData
 {
   gpointer data;
   gpointer nick;
   gpointer value;
 };
 typedef struct _SourceData SourceData;

 static GstBusSyncReply
 create_window (GstBus * bus, GstMessage * message, GtkWidget * widget)
 {
   // ignore anything but 'prepare-window-handle' element messages
   if (GST_MESSAGE_TYPE (message) != GST_MESSAGE_ELEMENT)
     return GST_BUS_PASS;

   if (!gst_is_video_overlay_prepare_window_handle_message (message))
     return GST_BUS_PASS;

   gst_video_overlay_set_gtk_window (GST_VIDEO_OVERLAY (GST_MESSAGE_SRC
           (message)), widget);

   gst_message_unref (message);

   return GST_BUS_DROP;
 }

 static void
 message_cb (GstBus * bus, GstMessage * message, GstElement * pipeline)
 {
   gst_element_set_state (pipeline, GST_STATE_NULL);
   gst_object_unref (pipeline);

   gtk_main_quit ();
 }

 static gboolean
 expose_cb (GtkWidget * widget, cairo_t * cr, GstElement * videosink)
 {
   gst_video_overlay_expose (GST_VIDEO_OVERLAY (videosink));
   return FALSE;
 }

 static void
 destroy_cb (GtkWidget * widget, GdkEvent * event, GstElement * pipeline)
 {
   g_message ("destroy callback");

   gst_element_set_state (pipeline, GST_STATE_NULL);
   gst_object_unref (pipeline);

   gtk_main_quit ();
 }

 static gboolean
 play_cb (GtkWidget * widget, gpointer data)
 {
   g_message ("playing");
   gst_element_set_state (GST_ELEMENT (data), GST_STATE_PLAYING);
   return FALSE;
 }

 static gboolean
 null_cb (GtkWidget * widget, gpointer data)
 {
   g_message ("nulling");
   gst_element_set_state (GST_ELEMENT (data), GST_STATE_NULL);
   return FALSE;
 }

 static gboolean
 ready_cb (GtkWidget * widget, gpointer data)
 {
   g_message ("readying");
   gst_element_set_state (GST_ELEMENT (data), GST_STATE_READY);
   return FALSE;
 }

 static gboolean
 pause_cb (GtkWidget * widget, gpointer data)
 {
   g_message ("pausing");
   gst_element_set_state (GST_ELEMENT (data), GST_STATE_PAUSED);
   return FALSE;
 }

 static gboolean
 set_location_delayed (gpointer data)
 {
   SourceData *sdata = (SourceData *) data;
   delay--;
   g_print ("%d\n", delay);
   if (delay > 0) {
     return TRUE;
   }
   g_object_set (G_OBJECT (sdata->data), sdata->nick, sdata->value, NULL);
   delay = saveddelay;
   return FALSE;
 }

 static void
 on_drag_data_received (GtkWidget * widget,
     GdkDragContext * context, int x, int y,
     GtkSelectionData * seldata, guint inf, guint time, gpointer data)
 {
   SourceData *userdata = g_new0 (SourceData, 1);
   GdkPixbufFormat *format;
   gchar **uris = gtk_selection_data_get_uris (seldata);
   gchar *filename = NULL;

   g_return_if_fail (uris != NULL);
   filename = g_filename_from_uri (uris[0], NULL, NULL);
   g_return_if_fail (filename != NULL);
   format = gdk_pixbuf_get_file_info (filename, NULL, NULL);
   g_return_if_fail (format);
   g_print ("received %s image: %s\n", filename,
       gdk_pixbuf_format_get_name (format));

   userdata->nick = (gchar *) "location";
   userdata->value = g_strdup (filename);
   userdata->data = data;
   saveddelay = delay;
   if (delay > 0) {
     g_print ("%d\n", delay);
     g_timeout_add_seconds (1, set_location_delayed, userdata);
   } else
     g_object_set (G_OBJECT (userdata->data), userdata->nick, userdata->value,
         NULL);
   g_free (filename);
 }


 gint
 main (gint argc, gchar * argv[])
 {
   GstElement *pipeline;
   GstElement *filter, *sink;
   GstElement *sourcebin;
   GstBus *bus;
   GError *error = NULL;

   GtkWidget *window;
   GtkWidget *screen;
   GtkWidget *vbox;
   GtkWidget *hbox;
   GtkWidget *play, *pause, *null, *ready;

   gchar **source_desc_array = NULL;
   gchar *source_desc = NULL;

   GOptionContext *context;
   GOptionEntry options[] = {
     {"source-bin", 's', 0, G_OPTION_ARG_STRING_ARRAY, &source_desc_array,
         "Use a custom source bin description (gst-launch style)", NULL}
     ,
     {"method", 'm', 0, G_OPTION_ARG_INT, &method,
         "1 for gstdifferencematte, 2 for gloverlay", "M"}
     ,
     {"delay", 'd', 0, G_OPTION_ARG_INT, &delay,
           "Wait N seconds before to send the image to gstreamer (useful with differencematte)",
         "N"}
     ,
     {NULL}
   };

   context = g_option_context_new (NULL);
   g_option_context_add_main_entries (context, options, NULL);
   g_option_context_add_group (context, gst_init_get_option_group ());
   g_option_context_add_group (context, gtk_get_option_group (TRUE));
   if (!g_option_context_parse (context, &argc, &argv, &error)) {
     g_print ("Inizialization error: %s\n", GST_STR_NULL (error->message));
     g_option_context_free (context);
     g_clear_error (&error);
     return -1;
   }
   g_option_context_free (context);

   if (source_desc_array != NULL) {
     source_desc = g_strjoinv (" ", source_desc_array);
     g_strfreev (source_desc_array);
   }
   if (source_desc == NULL) {
     source_desc =
         g_strdup
         ("videotestsrc ! video/x-raw, width=352, height=288 ! identity");
   }

   sourcebin =
       gst_parse_bin_from_description (g_strdup (source_desc), TRUE, &error);
   g_free (source_desc);
   if (error) {
     g_print ("Error while parsing source bin description: %s\n",
         GST_STR_NULL (error->message));
     return -1;
   }

   g_set_application_name ("gst-gl-effects test app");

   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
   gtk_container_set_border_width (GTK_CONTAINER (window), 3);

   pipeline = gst_pipeline_new ("pipeline");

   if (method == 2) {
     filter = gst_element_factory_make ("gloverlay", "flt");
   } else {
     filter = gst_element_factory_make ("gldifferencematte", "flt");
   }
   sink = gst_element_factory_make ("glimagesink", "glsink");

   gst_bin_add_many (GST_BIN (pipeline), sourcebin, filter, sink, NULL);

   if (!gst_element_link_many (sourcebin, filter, sink, NULL)) {
     g_print ("Failed to link one or more elements!\n");
     return -1;
   }

   g_signal_connect (G_OBJECT (window), "delete-event",
       G_CALLBACK (destroy_cb), pipeline);
   g_signal_connect (G_OBJECT (window), "destroy-event",
       G_CALLBACK (destroy_cb), pipeline);

   screen = gtk_drawing_area_new ();

   gtk_widget_set_size_request (screen, 640, 480);       // 500 x 376

   vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);

   gtk_box_pack_start (GTK_BOX (vbox), screen, TRUE, TRUE, 0);

   hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);

   play = gtk_button_new_with_label ("PLAY");

   g_signal_connect (G_OBJECT (play), "clicked", G_CALLBACK (play_cb), pipeline);

   pause = gtk_button_new_with_label ("PAUSE");

   g_signal_connect (G_OBJECT (pause), "clicked",
       G_CALLBACK (pause_cb), pipeline);

   null = gtk_button_new_with_label ("NULL");

   g_signal_connect (G_OBJECT (null), "clicked", G_CALLBACK (null_cb), pipeline);

   ready = gtk_button_new_with_label ("READY");

   g_signal_connect (G_OBJECT (ready), "clicked",
       G_CALLBACK (ready_cb), pipeline);

   gtk_box_pack_start (GTK_BOX (hbox), null, TRUE, TRUE, 0);
   gtk_box_pack_start (GTK_BOX (hbox), ready, TRUE, TRUE, 0);
   gtk_box_pack_start (GTK_BOX (hbox), play, TRUE, TRUE, 0);
   gtk_box_pack_start (GTK_BOX (hbox), pause, TRUE, TRUE, 0);

   gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);

   gtk_container_add (GTK_CONTAINER (window), vbox);

   gtk_widget_realize (screen);

   bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
   gst_bus_set_sync_handler (bus, (GstBusSyncHandler) create_window, screen,
       NULL);
   gst_bus_add_signal_watch (bus);
   g_signal_connect (bus, "message::error", G_CALLBACK (message_cb), pipeline);
   g_signal_connect (bus, "message::warning", G_CALLBACK (message_cb), pipeline);
   g_signal_connect (bus, "message::eos", G_CALLBACK (message_cb), pipeline);
   gst_object_unref (bus);
   g_signal_connect (screen, "draw", G_CALLBACK (expose_cb), sink);

   gtk_drag_dest_set (screen, GTK_DEST_DEFAULT_ALL, NULL, 0, GDK_ACTION_COPY);
   gtk_drag_dest_add_uri_targets (screen);

   g_signal_connect (screen, "drag-data-received",
       G_CALLBACK (on_drag_data_received), filter);

   gtk_widget_show_all (GTK_WIDGET (window));

   gst_element_set_state (pipeline, GST_STATE_PLAYING);

   gtk_main ();

   return 0;
 }
	/*
	* GStreamer
	* Copyright (C) 2008-2009 Filippo Argiolas <filippo.argiolas@gmail.com>
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Library General Public
	* License as published by the Free Software Foundation; either
	* version 2 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Library General Public License for more details.
	*
	* You should have received a copy of the GNU Library General Public
	* License along with this library; if not, write to the
	* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
	* Boston, MA 02110-1301, USA.
	*/
	#ifdef HAVE_CONFIG_H
	#include "config.h"
	#endif

	#define GLIB_DISABLE_DEPRECATION_WARNINGS

	#include <gst/gst.h>
	#include <gtk/gtk.h>
	#include <gdk/gdk.h>
	#include <gdk-pixbuf/gdk-pixbuf.h>

	#include "../gstgtk.h"

	#include <gst/video/videooverlay.h>

	static gint delay = 0;
	static gint saveddelay = 0;
	static gint method = 1;

	struct _SourceData
	{
	gpointer data;
	gpointer nick;
	gpointer value;
	};
	typedef struct _SourceData SourceData;

	static GstBusSyncReply
	create_window (GstBus * bus, GstMessage * message, GtkWidget * widget)
	{
	// ignore anything but 'prepare-window-handle' element messages
	if (GST_MESSAGE_TYPE (message) != GST_MESSAGE_ELEMENT)
	return GST_BUS_PASS;

	if (!gst_is_video_overlay_prepare_window_handle_message (message))
	return GST_BUS_PASS;

	gst_video_overlay_set_gtk_window (GST_VIDEO_OVERLAY (GST_MESSAGE_SRC
	(message)), widget);

	gst_message_unref (message);

	return GST_BUS_DROP;
	}

	static void
	message_cb (GstBus * bus, GstMessage * message, GstElement * pipeline)
	{
	gst_element_set_state (pipeline, GST_STATE_NULL);
	gst_object_unref (pipeline);

	gtk_main_quit ();
	}

	static gboolean
	expose_cb (GtkWidget * widget, cairo_t * cr, GstElement * videosink)
	{
	gst_video_overlay_expose (GST_VIDEO_OVERLAY (videosink));
	return FALSE;
	}

	static void
	destroy_cb (GtkWidget * widget, GdkEvent * event, GstElement * pipeline)
	{
	g_message ("destroy callback");

	gst_element_set_state (pipeline, GST_STATE_NULL);
	gst_object_unref (pipeline);

	gtk_main_quit ();
	}

	static gboolean
	play_cb (GtkWidget * widget, gpointer data)
	{
	g_message ("playing");
	gst_element_set_state (GST_ELEMENT (data), GST_STATE_PLAYING);
	return FALSE;
	}

	static gboolean
	null_cb (GtkWidget * widget, gpointer data)
	{
	g_message ("nulling");
	gst_element_set_state (GST_ELEMENT (data), GST_STATE_NULL);
	return FALSE;
	}

	static gboolean
	ready_cb (GtkWidget * widget, gpointer data)
	{
	g_message ("readying");
	gst_element_set_state (GST_ELEMENT (data), GST_STATE_READY);
	return FALSE;
	}

	static gboolean
	pause_cb (GtkWidget * widget, gpointer data)
	{
	g_message ("pausing");
	gst_element_set_state (GST_ELEMENT (data), GST_STATE_PAUSED);
	return FALSE;
	}

	static gboolean
	set_location_delayed (gpointer data)
	{
	SourceData sdata = (SourceData ) data;
	delay--;
	g_print ("%d\n", delay);
	if (delay > 0) {
	return TRUE;
	}
	g_object_set (G_OBJECT (sdata->data), sdata->nick, sdata->value, NULL);
	delay = saveddelay;
	return FALSE;
	}

	static void
	on_drag_data_received (GtkWidget * widget,
	GdkDragContext * context, int x, int y,
	GtkSelectionData * seldata, guint inf, guint time, gpointer data)
	{
	SourceData *userdata = g_new0 (SourceData, 1);
	GdkPixbufFormat *format;
	gchar **uris = gtk_selection_data_get_uris (seldata);
	gchar *filename = NULL;

	g_return_if_fail (uris != NULL);
	filename = g_filename_from_uri (uris[0], NULL, NULL);
	g_return_if_fail (filename != NULL);
	format = gdk_pixbuf_get_file_info (filename, NULL, NULL);
	g_return_if_fail (format);
	g_print ("received %s image: %s\n", filename,
	gdk_pixbuf_format_get_name (format));

	userdata->nick = (gchar *) "location";
	userdata->value = g_strdup (filename);
	userdata->data = data;
	saveddelay = delay;
	if (delay > 0) {
	g_print ("%d\n", delay);
	g_timeout_add_seconds (1, set_location_delayed, userdata);
	} else
	g_object_set (G_OBJECT (userdata->data), userdata->nick, userdata->value,
	NULL);
	g_free (filename);
	}


	gint
	main (gint argc, gchar * argv[])
	{
	GstElement *pipeline;
	GstElement filter, sink;
	GstElement *sourcebin;
	GstBus *bus;
	GError *error = NULL;

	GtkWidget *window;
	GtkWidget *screen;
	GtkWidget *vbox;
	GtkWidget *hbox;
	GtkWidget play, pause, null, ready;

	gchar **source_desc_array = NULL;
	gchar *source_desc = NULL;

	GOptionContext *context;
	GOptionEntry options[] = {
	{"source-bin", 's', 0, G_OPTION_ARG_STRING_ARRAY, &source_desc_array,
	"Use a custom source bin description (gst-launch style)", NULL}
	,
	{"method", 'm', 0, G_OPTION_ARG_INT, &method,
	"1 for gstdifferencematte, 2 for gloverlay", "M"}
	,
	{"delay", 'd', 0, G_OPTION_ARG_INT, &delay,
	"Wait N seconds before to send the image to gstreamer (useful with differencematte)",
	"N"}
	,
	{NULL}
	};

	context = g_option_context_new (NULL);
	g_option_context_add_main_entries (context, options, NULL);
	g_option_context_add_group (context, gst_init_get_option_group ());
	g_option_context_add_group (context, gtk_get_option_group (TRUE));
	if (!g_option_context_parse (context, &argc, &argv, &error)) {
	g_print ("Inizialization error: %s\n", GST_STR_NULL (error->message));
	g_option_context_free (context);
	g_clear_error (&error);
	return -1;
	}
	g_option_context_free (context);

	if (source_desc_array != NULL) {
	source_desc = g_strjoinv (" ", source_desc_array);
	g_strfreev (source_desc_array);
	}
	if (source_desc == NULL) {
	source_desc =
	g_strdup
	("videotestsrc ! video/x-raw, width=352, height=288 ! identity");
	}

	sourcebin =
	gst_parse_bin_from_description (g_strdup (source_desc), TRUE, &error);
	g_free (source_desc);
	if (error) {
	g_print ("Error while parsing source bin description: %s\n",
	GST_STR_NULL (error->message));
	return -1;
	}

	g_set_application_name ("gst-gl-effects test app");

	window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
	gtk_container_set_border_width (GTK_CONTAINER (window), 3);

	pipeline = gst_pipeline_new ("pipeline");

	if (method == 2) {
	filter = gst_element_factory_make ("gloverlay", "flt");
	} else {
	filter = gst_element_factory_make ("gldifferencematte", "flt");
	}
	sink = gst_element_factory_make ("glimagesink", "glsink");

	gst_bin_add_many (GST_BIN (pipeline), sourcebin, filter, sink, NULL);

	if (!gst_element_link_many (sourcebin, filter, sink, NULL)) {
	g_print ("Failed to link one or more elements!\n");
	return -1;
	}

	g_signal_connect (G_OBJECT (window), "delete-event",
	G_CALLBACK (destroy_cb), pipeline);
	g_signal_connect (G_OBJECT (window), "destroy-event",
	G_CALLBACK (destroy_cb), pipeline);

	screen = gtk_drawing_area_new ();

	gtk_widget_set_size_request (screen, 640, 480); // 500 x 376

	vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);

	gtk_box_pack_start (GTK_BOX (vbox), screen, TRUE, TRUE, 0);

	hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);

	play = gtk_button_new_with_label ("PLAY");

	g_signal_connect (G_OBJECT (play), "clicked", G_CALLBACK (play_cb), pipeline);

	pause = gtk_button_new_with_label ("PAUSE");

	g_signal_connect (G_OBJECT (pause), "clicked",
	G_CALLBACK (pause_cb), pipeline);

	null = gtk_button_new_with_label ("NULL");

	g_signal_connect (G_OBJECT (null), "clicked", G_CALLBACK (null_cb), pipeline);

	ready = gtk_button_new_with_label ("READY");

	g_signal_connect (G_OBJECT (ready), "clicked",
	G_CALLBACK (ready_cb), pipeline);

	gtk_box_pack_start (GTK_BOX (hbox), null, TRUE, TRUE, 0);
	gtk_box_pack_start (GTK_BOX (hbox), ready, TRUE, TRUE, 0);
	gtk_box_pack_start (GTK_BOX (hbox), play, TRUE, TRUE, 0);
	gtk_box_pack_start (GTK_BOX (hbox), pause, TRUE, TRUE, 0);

	gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);

	gtk_container_add (GTK_CONTAINER (window), vbox);

	gtk_widget_realize (screen);

	bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
	gst_bus_set_sync_handler (bus, (GstBusSyncHandler) create_window, screen,
	NULL);
	gst_bus_add_signal_watch (bus);
	g_signal_connect (bus, "message::error", G_CALLBACK (message_cb), pipeline);
	g_signal_connect (bus, "message::warning", G_CALLBACK (message_cb), pipeline);
	g_signal_connect (bus, "message::eos", G_CALLBACK (message_cb), pipeline);
	gst_object_unref (bus);
	g_signal_connect (screen, "draw", G_CALLBACK (expose_cb), sink);

	gtk_drag_dest_set (screen, GTK_DEST_DEFAULT_ALL, NULL, 0, GDK_ACTION_COPY);
	gtk_drag_dest_add_uri_targets (screen);

	g_signal_connect (screen, "drag-data-received",
	G_CALLBACK (on_drag_data_received), filter);

	gtk_widget_show_all (GTK_WIDGET (window));

	gst_element_set_state (pipeline, GST_STATE_PLAYING);

	gtk_main ();

	return 0;
	}